Aug. 19 9:09 AM PT10:09 AM MT11:09 AM CT12:09 PM ET16:09 GMT12:09 AM 北京时间9:09 AM MST11:09 AM EST11:09 AM CT20:09 UAE12:09 ET15:09 - The Kansas City Chiefs have traded wide receiver Jon Baldwin to the San Francisco 49ers for wide receiver A.J. Jenkins in a swap of disappointing first-round picks.Analysis: Baldwin was the 26th overall pick of the Chiefs in 2011. He missed time his rookie season after getting hurt in a fight with a teammate, and has been prone to dropping passes. He has just 41 catches for 579 yards and two touchdowns in two seasons.